SOLUTION: avg speed to car 1 = 55 mph
avg speed of car 2 = 70 mph
time elapsed between start of car 1 and start of car 2 = 4 minutes
how long before cars2 overtakes car 1?
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avg speed of car 2 = 70 mph
time elapsed between start of car 1 and start of car 2 = 4 minutes
how long before cars2 overtakes car 1?
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Question 137279: avg speed to car 1 = 55 mph
avg speed of car 2 = 70 mph
time elapsed between start of car 1 and start of car 2 = 4 minutes
how long before cars2 overtakes car 1? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! d=rt or distance=rate*time
seeing as the distances are equal & the time is t & (t-4) we have:
55t=70(t-4)
55t=70t-280
55t-70y=-280
-15t=-280
t=-280/-15
t=18.66667 minutes car #2 will catch car #1.
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